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Load moment limiter-based crawling crane anti-overturn device and method

A technology of crawler cranes and moment limiters, which is applied in the directions of cranes, transportation and packaging, and load hanging components, etc., can solve the problems of easy false alarms, calculation errors of moment limiters, and failure to prevent cranes, etc. Avoid tipping and simple structure

Inactive Publication Date: 2011-01-05
SHANGHAI SANY TECH
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Problems solved by technology

[0003] However, the moment limiter cannot prevent the crane from overturning due to non-overloading reasons such as inclined suspension, wind load, and uneven road surface; moreover, the moment limiter is prone to false alarms due to calculation errors, thus affecting the entire crane. normal construction work

Method used

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  • Load moment limiter-based crawling crane anti-overturn device and method
  • Load moment limiter-based crawling crane anti-overturn device and method
  • Load moment limiter-based crawling crane anti-overturn device and method

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] figure 1 It is a specific structural schematic diagram of a crawler crane anti-rollover device based on a moment limiter of the present invention. It can be seen from the figure that the crawler crane anti-tipping device based on the moment limiter mainly includes a level 1 , an encoder 2 , a moment limiter 3 , a controller 4 and a display 5 . Wherein, the spirit level 1 is used to measure the inclination angle of the crawler crane in two horizontal directions. Encoder 2 is used to measure the slewing angle of crawler crane. The moment limiter 3 is used to measure the real-time load information of the crawler crane, such as working conditions, arm length, counterweight weight, hook weight, jib angle, current hoisting load and other parameters, so as to make timely and timely adjustments to the current load status of the crawler crane. accurate calcu...

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Abstract

The invention provides a load moment limiter-based crawling crane anti-overturn device, which comprises a gradienter, a coder, a load moment limiter, a controller and a display, wherein the gradienter is used for measuring the inclination angle of a crawling crane in the horizontal direction; the coder is used for measuring the revolution angle of the crawling crane; the load moment limiter is used for measuring real-time load information of the crawling crane; the controller is used for calculating the gravity center position of the crawling crane and controlling the display of the gravity center; and the display is used for displaying the current gravity center position of the crawling crane, wherein the gradienter, the coder and the load moment limiter are connected to the controller, and the controller is connected to the display. The load moment limiter-based crawling crane anti-overturn device and a method accurately judge the gravity center position of the crawling plane in real time under the combined action of the gradienter, the coder and the load moment limiter to further control specific operations of the crane, thereby effectively preventing the crawling crane from being turned over.

Description

technical field [0001] The present invention relates to an anti-overturning device and method for a crane, in particular, to an anti-overturning device and method for a crawler crane based on a moment limiter. Background technique [0002] At present, moment limiters are installed on crawler cranes. The torque limiter makes a corresponding judgment on the load state of the crane by collecting the parameters of the current operating state of the crane in real time. When the load of the crane reaches a certain ratio of the rated load, the moment limiter will send out an alarm and other information; when the load exceeds the rated load, the moment limiter will automatically disconnect the power supply of the crane to prevent strength damage or the whole machine from tipping over. [0003] However, the moment limiter cannot prevent the crane from overturning due to non-overloading reasons such as inclined suspension, wind load, and uneven road surface; moreover, the moment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/88B66C13/16
Inventor 王建明章云徽张戈马闯谢爱国梁存德
Owner SHANGHAI SANY TECH
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